Punnett Squares

Front

What is a Punnett Square used for?

Back

A Punnett Square is a diagram used to predict the outcome of a genetic cross by showing the possible combinations of alleles from the parents.

Front

Define codominance in genetics.

Back

Codominance is a form of inheritance where both alleles in a heterozygote are fully expressed, resulting in a phenotype that shows both traits simultaneously.

Front

What is incomplete dominance?

Back

Incomplete dominance is a genetic situation in which one allele does not completely dominate another allele, resulting in a phenotype that is a blend of the two.

Tags

NGSS.HS-LS3-1

Front

What are the possible genotypes for a monohybrid cross between two heterozygous parents (Tt x Tt)?

Back

The possible genotypes are TT (25%), Tt (50%), and tt (25%).

Tags

NGSS.HS-LS3-3

Front

What does the term 'dominant trait' mean?

Back

A dominant trait is a genetic trait that is expressed in the phenotype even when only one copy of the allele is present.

Front

What is the phenotype of a calico cat?

Back

A calico cat has a coat that displays patches of orange and black fur, which is a result of codominance.

Front

How do you determine the genotype of an organism?

Back

The genotype of an organism can be determined through genetic testing or by analyzing the offspring produced in a genetic cross.

Tags

NGSS.HS-LS3-1

Front

What is the significance of the F1 generation in genetics?

Back

The F1 generation is the first filial generation, which is the result of a cross between two parental (P) generations, and it often exhibits dominant traits.

Front

Explain the term 'allele'.

Back

An allele is a variant form of a gene that can produce different traits in an organism.

Front

What is the expected phenotypic ratio of a dihybrid cross?

Back

The expected phenotypic ratio of a dihybrid cross is typically 9:3:3:1.